/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Changes/MeshPolygroupChange.h
FMeshPolygroupChangestores a change to Polygroup IDs on a set of triangles, as aFDynamicMeshGroupEdit.
class FMeshPolygroupChange : public [FMeshChange](API\Runtime\GeometryFramework\Changes\FMeshChange)
TUniquePtr<FDy...
GroupEdit